The Federal Circuit's en banc decision in Williamson v. Citrix Online, LLC, 792 F.3d 1339 (Fed. Cir. 2015), expanded the potential application of 35 U.S.C. §112, ¶6, making it more likely that functional claim language will be construed as a means-plus-function limitation even in the absence of the word “means.”
Expanded Means-Plus-Function Analysis Presents New Opportunities and Challenges
The Federal Circuit's <i>en banc</i> decision in <i>Williamson v. Citrix Online</i> expanded the potential application of 35 U.S.C. §112, ¶6, making it more likely that functional claim language will be construed as a means-plus-function limitation even in the absence of the word "means." This article discusses recent decisions applying <i>Williamson</i> and provides practical insights and strategies for patent owners and accused infringers to consider when addressing the expanded application of §112, ¶6.
By
Joshua D. Curry and Kate E. Hart
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